Wrench.



T. ATZENWEIL'ER.

WRENCH. APPLICATION FILED APR. 27, 1908.

Tami

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T. ATZENWBILER.

WRENCH. APPLICATION FILED APR. 27, 1908.

Tara

Wibwaag I v PATENTED AUG. 18, 1908.

2 SHEETS-SHEET 2.

THEODORE ATZENWEILER, OF HURON, KANSAS.

WRENCH.

Specification of Letters Patent.

Patented Aug. 18,- 1908.

Application filed. April 27, 1908. Serial No. 429,472.

and simplify the construction and operation of devices of this character and thereby render the same stronger, more durable and con? venient and less expensive.

The above and other objects of the invention are attained in its preferred embodiment illustrated in the accompanying drawings, in which Figure 1 is a plan view of my improved wrench; Fig. 2 is an edge view of the same; Fig. 3 1s a view showmg the cover plate removed and one of the pawls secured inan inoperative position; and Figs. 4-and v5 are detail views oftwo of the interchangeable socket members for engaging the taps or nuts.

My improved wrench comprises a head 1 from one end of which projects a suitable handle 2. Said head comprises a solid body portion one side face of which is recessed, as at'3, to receive a removable cover plate 4 and the other side of which has formed integral with it an extension which forms a plate 5 similar to said cover plate. The portions of the plates or members 4, 5 which extend beyond the body or solid portion of the head are circular in form and are provided with alined concentric circular openings 6 to rotatably receive the reduced ends 7 of a ratchet ring or collar 8 arranged for rotation between the plates 4, 5. This ratchet ring or member 8 has the outer face of its portion which projects between the plates 4, 5 formed with ratchet notches 9 to receive oppositely disposed pawls or dogs 10, 11, aspresently explained. The removable cover plate 4 is secured to the head or body 1 by a screw 12 passed through its inner portion and into a threaded socket in said head; and it serves to retain both the ratchet member. orring and the pawls in said head.

The pawls 10, 11 are of peculiar construction, each having a body portion 13 formed at one end with a circular pivot 14, at its other end with a toothv 15 to engage the notches 9 and at an intermediate point with an angularly' rojecting finger piece :16, the latter being ormed with an inwardly extending projection .17.. Oneof said pawls is provided upon each sideof the head or body 1 so that they are oppositely disposed and in orderto mount them in said head, the latter has formed in each-of its side edges a circular socket 18'to receive the pivot portion 14, of one of the pawls and a recess or socket 19'to receive the projecting portion 17 of the finger piece of said pawl and a coil spring 20 which is confined between the bottom of said socket 19 and the portion 17 of the pawl and exerts its energy to project the finger piece outwardly and .thereby swing the shouldered end or tooth15 of the pawl inwardly into engagement with the ratchet member; It will be seen that when thefinger piece 16 of each pawl is pressed inwardly the tooth 15 will be swung outwardly to free the ratchet member. 'By shaping the body or head 1 and constructing and I mounting the pawl as shown, it will beseen that the wrench will be exceedingly strong and durable and also inexpensive since the parts may be produced at a small cost and quickly and easily assembled. When the cover-plate 4 is removed the pawls may be readily removed by simply lifting them out of the sockets 18, 19 and when said cover plate is applied it will effectively retain them in the head withoutthe use-of pivot screws, or similar devices.

For the purpose of holding or looking one of the pawls in an inoperative positionwhile the other engagesthe ratchet member I r0- vide a locking sleeve or collar 21 whic is slidably and rotatably mounted upon the handle 2 and formed with a projection or finger 22 which may be engaged with the finger piece 16 of either pawl to hold the same in its retracted position, as will be readily understood upon reference to Fig. 3. If desired, the finger pieces 16 may be notched or recessed, as at 23, to receive the projection 22 v 'on the locking collar or member. I may also provide a pin 24 or any other suitablestop.

upon the handle 2 to limit the sliding move: ment of said locking collar and retain'it upon the handle. Said stop is so positioned that when the locking collar is moved inwardly on,

thehandle to'engage it, the projection 22 will ,clear the head or bodyof the. wrench so that said collar canbe turned or rotated upon the handle'to bring said'projection into alinement with eitherof the-pawls, thus when the collar'is moved outwardly or towardlthe head 1 and the finger piece of such pawl is pressed inwardly the projection22 may be engaged withthe notch fin er piece.

11 order to adapt my Wrench for engaging. 'nuts, bolt heads, and .the like, of diiferent':

sizes and shapesI rovide for use in: connection with it a plura ity of-socket members 24,

25 such 'as'illustr'ated in Figs. 4 and5ofthe drawings. 1 Each ofthese .members: has atv its outer end a socket 26. which maybe of any sizeand anyshape; As. shown in the drawings said sockets aresquare 'toreceive square nuts or bolt heads and they are. of dlfi'erent sizes. i The other end ofeach of the socket members has a. cylindrical portion a'da ted-to enter a similarshaped o ening int e-ratchet. ring or member Sand ormed upon itsouter faceat'one or more pointswith longitudinally extending ribs 27 adapted to I enter grooves or channels 28 similarly shaped.

and similarly arran ed in the opening'in said ratchet member. aid socketmembers are retained in the ratchet member bymeans of a catch 29 in the form of a lever pivoted upon one ofthe ends 7 of the ratchet member and having at its free end a laterally projectmg tongueadapted to swing intoan opening in a keeper projection 30 on the end of said socket members, as clearly shown in the drawin s. Said free end of the catch lever isalso ormed with an outwardly projecting finger piece, as shown more clearly in Fig. 2-.'

It will beseen that. by constructing these nut engaging socketme'mbers as described, they.

maybe quickly applied to and removed from thewrench head so that the wrench may be guickly and easily adapted for the work to be one.

From the foregoing it will be seen that my wrench is exceedingly simple and practical in construction and will therefore be strong. and durable inuse and comparatively inexpensive to manufacture. It is also exceedingly convenient in o eration since it permits nuts, bolts, or the like to be quickly and easily screwed or unscrewed. When the nut or bolt is to be rotated in one direction one of the pawls maybe quickly secured in an inoperative position so that by oscillating. the handle of the wrench he other pawl wi ro or recess 23 in the tate the; ratchet member in the roper direcd to turn the nut or bolt in the opposite direction the lockj, by

ar is reversed to release I ,one pawl and to hold the other inan iriopera- 1 tion, and that when it is desire ing member or co tive 1 position. g g

Havingthus described my invention what I claim is:

sockets, said head being. formed upon one 1. A wrench 'comprising a head formed in its opposite edges with pivot sockets and "1 with sockets arranged adjacent to saidpivot 1 sidewith an extension plate having a circular 1 g opening, a handle projecting from said head,

a removable cover plate secured on the other side of said head and having a circular open 1 i ing to aline with the one=in said extension plate, a ratchet member arranged between said plates and having portions mounted for. a i I rotation in the openmgs in. said plates, means upon the ratchet member to engage a} nut, oppositely disposed pawls to engagesaid. I ratchet member, each 'pawl having a pivot w 0mm arranged in one of the Pivot sockets 1n the headand a finger projection extending. into one of :the othe sockets in said head; springs in the last mentioned sockets for actuatingthe finger pieces of the awls out-, i her of said wardly and means for holding eit pawls in a retracted position. I

its opposite'edges with pivot sockets and a removable cover plate secured on the other rotation in the openings in said plates, means upon the ratchet member to engage ain'ut, a.

oppositely disposed 1 pawls to engage said ..1 ratchet member, each pawlhaving apivot portionarranged in one of the pivot sockets in the head and a finger projectionextending" into one of the other sockets in said head,

wardly, and'a lockingcollarslidab y and rotatably mounted upon said handle and pro vided with aprojection ada ted to ,enga

o'e the finger piece of either ofsaid pawls tohold the same retracted.

A Wrench comprising a head having a.

handle projectin therefrom, a rotary ratchet ring insaid head and formed with a central springs in the last mentioned sockets for actuating the fingerpieces of the awls outopening provided with a grooved wall, a pawl upon the head to co-act with saidratchet, a 1 removable nut engaging socket member adapted to enter the o ening in the ratchet and formed upon its si e with a rib to enter 1 the groove in the Wall of said opening and In testimony whereof I hereunto aflix my ppon its ecrlidhwith the1 projecting apeirtured signature in the presence of tWo Witnesses. ug 30, an t e catch ever 29 ivote u on one end of said ring and having gt its free 3nd THEODORE ATZENWEILER' 5 a laterally projecting tongue to enter the Witnesses:

opening in said lug and an outwardly pro- G. SEHOLEER, jecting finger piece. IVAN 00E. 

